Authorities in the northern Greek city of Thessaloniki evacuated an estimated 75,000 people Sunday so army experts could defuse a 227kg unexploded second world war bomb found under a gas station. Bomb disposal experts started their work at 11.30am local time, 90 minutes later than planned, as police went house-to-house, reminding late risers and other stragglers to leave their homes. Authorities were clearing out a 1.9km radius around the bomb site, mostly in the western suburb of Kordelio....